I have a total of 3 nodes, 2 in one building and 1 in another building. Every couple of weeks, the one in the other building shows up as offline to the other two, and vice versa. I'm able to ping between nodes, but they still aren't showing up as connected. Before I was able to get them to re-sync by rebooting the problem node, but the last couple of times have been more stubborn.
Sorry for the lack of information, not an advanced user, but can get any info you might need to help. Thanks a ton in advance.
When I run systemctl status corosync.service I get this:
root@pve1:~# systemctl status corosync.service
● corosync.service - Corosync Cluster Engine
Loaded: loaded (/usr/lib/systemd/system/corosync.service; enabled; preset: enabled)
Active: active (running) since Mon 2026-05-04 10:49:34 MDT; 8min ago
Invocation: 200524b3d2e148de8098f23ec61b3ba6
Docs: man:corosync
man:corosync.conf
man:corosync_overview
Main PID: 1665 (corosync)
Tasks: 9 (limit: 70911)
Memory: 153.1M (peak: 153.8M)
CPU: 3.321s
CGroup: /system.slice/corosync.service
└─1665 /usr/sbin/corosync -f
May 04 10:57:33 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:33 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
May 04 10:57:34 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
May 04 10:57:34 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:34 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:34 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
May 04 10:57:35 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:35 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
May 04 10:57:35 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:35 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
Sorry for the lack of information, not an advanced user, but can get any info you might need to help. Thanks a ton in advance.
When I run systemctl status corosync.service I get this:
root@pve1:~# systemctl status corosync.service
● corosync.service - Corosync Cluster Engine
Loaded: loaded (/usr/lib/systemd/system/corosync.service; enabled; preset: enabled)
Active: active (running) since Mon 2026-05-04 10:49:34 MDT; 8min ago
Invocation: 200524b3d2e148de8098f23ec61b3ba6
Docs: man:corosync
man:corosync.conf
man:corosync_overview
Main PID: 1665 (corosync)
Tasks: 9 (limit: 70911)
Memory: 153.1M (peak: 153.8M)
CPU: 3.321s
CGroup: /system.slice/corosync.service
└─1665 /usr/sbin/corosync -f
May 04 10:57:33 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:33 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
May 04 10:57:34 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
May 04 10:57:34 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:34 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:34 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
May 04 10:57:35 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:35 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
May 04 10:57:35 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):5405
May 04 10:57:35 pve1 corosync[1665]: [KNET ] rx: Packet rejected from (building 1 public IP):26930
Last edited: